Wrench



`Mamzh 24, 1942. c. sAucEDo WRENCH Filed July 8,

INVENTOR 7 Sauf/ga arlos Patented Mar. 24, 1942 UNITED STATES PATENTOFFICE WRENCH Carlos Saucedo, El Paso, Tex. Application July s, 1940,serial No. 344,441

1 claim. (o1. 81-114) This invention relates to wrenches, and itsgeneral object is to provide a wrench that is primarily designed forapplying and removing notched ring packing nuts, particularly those ofdoor closers of the hydraulic type, the wrench being adjustable to fitnuts of various sizes and is therefore capable of performing thefunctions and taking the place of all of a great number of wrenches andlike tools, now employed by mechanics engaged in adjusting and replacingdoor and like closers, and in a more efiicient manner.

It might be mentioned that there are more than twenty different typesand sizes of closer packing nuts now in general use, and a differentwrench is now required for each size, while my wrench will fit any typeand size, consequently the advantages thereof will be obvious.

A further object is to provide a wrench that is not only capable ofapplying and removing packing nuts, in an easy and expeditious manner,and includes adjustable jaws for that purpose, but the jaws areinterchangeable with penetrating toothed jaws for removing damagedpacking and the like.

Another object is to provide a wrench of the character set forth, thatis simple in construction, in expensive to manufacture, and extremelyefficient in operation, use and service. This invention also consists incertainother features of construction and in the combination andarrangement of the several parts, to be hereinafter fully described,illustrated in the accompanying drawing and specifically pointed out inthe appended claim.

In describing the invention in detail, reference will be had to theaccompanying drawing wherein like characters denote like orcorresponding' parts throughout the several views, and in which:

Figure 1 is a side elevation of the wrench which forms the subjectmatter of the present invention.

Figure 2 is a longitudinal sectional view taken therethrough.

Figure 3 is a sectional view taken approximately on line 3-3 of Figure2, looking in the direction of the arrows.

Figure 4 is a view taken approximately on line 4 4 of Figure 2, lookingin the direction of the arrows.

Figure 5 is a front view of one of the nut receiving jaws.

Figure 6 is a side view thereof.

Figure 7 is a front view of one of the packing removing jaws.

Figure 8 is a side view thereof.

Referring to the drawing in detail, it will be noted that my wrenchincludes a hollow cylindrical body l having diametrically opposedflatfaces 2 extending longitudinally of the outer surface thereof for aportion of its length and from substantially midway its ends, as clearlyshown in Figure 2. The body is also provided with registering openingsadjacent one of its ends for the purpose of receiving a rod 3 providinga handle for rotating the wrench, as will be apparent.

Extending longitudinally of the body from its opposite end, arediametrically opposed slots 4 ,that are aligned with the flat facesandthe inner end walls of the slots are shaped toprovide substantiallyV-shaped tongues `5 that receive like shaped notchedends of a pair ofcompanion jaws 6 which are rockably mounted on the tongues for movementin the slots to be adjustedv toward andaway from -each other, for apurpose which will4 be later described.

The inner and outer faces of the jaws are curved transversely, while theside faces are flat for wiping engagement with the side walls of theslots and the jaws are tapered outwardly toward their outer ends toincrease the thickness thereof toward their inner faces. The jaws are ofa length to extend outwardly beyond the body, as clearly shown in Figure2, and formed on the outer ends of the jaws are lugs 'l which extendfrom the inner edges thereof, and each lug has formed thereon a squarecornered tooth 8 for the purpose of being received within the notches ofa ring type packing nut for applying and removing the same, as will beapparent.

The jaws are held associated with the body, by leaf springs 9 that haveone of their ends riveted or otherwise secured to the body adjacent tothe inner ends of the flat faces 2, for disposal of the springs alongsaid faces, as best shown in Figure 2, and the jaws are secured to theopposite ends of the springs by screws I0 having serrated heads tofacilitate application and removal thereof with respect to the jaws,Without the use of tools.

The outer end portions of the springs are outwardly ared for normallyurging the jaws away from each other, and in order to move the jawstoward each other, I provide a sleeve Il slidably and rotatably mountedon the body I for disposal in wiping engagement with the springs, asclearly shown in Figure 2. The sleeve Il is guided in its movement by aset screw l2 threaded in the body and with its head disposed Within aslot I3l disposed at an inclination circumferentially of the sleeve, asbest shown in Figure 1. By that construction, it will be obvious thatupon rotating the sleeve in the direction of the jaws, the wipingengagement of the sleeve against the springs 9 will adjust the jawstoward each other and a reverse movement of the sleeve will allow thesprings to adjust the jaws away from each other.

In order to facilitate movement of the sleeve, while gripping the handle3, I provide ribs I4 formed on and extending longitudinally thereof fromits end adjacent to the handle and for a portion of its length, the ribsbeing disposed in equi-distantly spaced relation with respect to eachother, to provide thumb and finger receiving spaces between the same, aswill be apparent upon inspection of Figure 1.

It is believed that the use of my tool will be obvious, but it might bementioned that in applying and removing a packing nut with respect tothe closure cap of a door closer the tool is positioned in a manner fordisposing the operating or crank shaft of the closer within the body I,thence the jaws are adjusted to a position so that the teeth 8 can beinserted within the notches of the nut, for threading or unthreading thesame, into or out of use.

Extreme difficulty is often experienced in removing packing especiallyif it is damaged, from about the operating shaft, and for that purpose Iprovide a pair of jaws I5 of the type shown in .Figures '7 and 8. lThesejaws are identical with the jaws 6 with the exception that each lug I6thereof has a pair of claw like teeth I1 formed thereon, so that whenthe jaws I5 are positioned within the slots 4 of the body, my wrench is'converted to what may be termed a reaming tool for removing broken orotherwise damaged packing, as will be apparent. It will be obvious thatthe jaws 6 and I5 are readily interchangeable, and the change can bemade with minimum effort and without the use of tools, vdue to the useof the serrated headed screws I 0, yet casual removal or displacement ofthe jaws is practically impossible.

It is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claim.

What I claim is:

A wrench for applying and removing notched ring packing nuts into andout of use and comprising a hollow cylindrical body having diametricallyopposed flat faces on its outer surface and extending longitudinallythereof for a portion of its length, said body having diametricallyopposed slots extending longitudinally thereof from one end to the flatfaces, substantially V- shaped tongues formed on the inner ends of theslots, toothed jaws mounted in the slots and being notched to provideseats fitting and receiving the tongues therein for rocking movement ofthe jaws toward and away from each other, leaf spring having one oftheir ends secured to the fiat faces and extending along the lengththereof, said springs having their opposite end portions outwardly aredfrom the body and detachably secured to the jaws for normally urging thelatter away from each other, a sleeve slidably mounted on the body andengaged with the springs for urging the jaws toward each other, saidsleeve having an inclined slot disposed circumferentially thereof, a setscrew secured to the body and mounted in the slot of the sleeve forguiding the sleeve in a spiral path about the body, ribs formed on andextending longitudinally of the sleeve to facilitate movement thereof,and a .handle detachably secured to the body.

' CARLOS SAUCEDO.

